2005 Lexus IS250 MOT pass rate: 76.5% (2,041 tests)
Is the 2005 IS250 getting worse?
Pass rate of 2005-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 76.5% +12.3 vs same-age |
|
| 2024 | 77.7% +13.5 vs same-age |
|
| 2025 | 75.2% +9.9 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2005 IS250
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Lamps, reflectors and electrical equipment | 365 | 25.8% |
| 2 | Brakes | 314 | 22.2% |
| 3 | Tyres | 223 | 15.7% |
| 4 | Noise, emissions and leaks | 179 | 12.6% |
| 5 | Suspension | 100 | 7.1% |
| 6 | Body, chassis, structure | 96 | 6.8% |
All IS250 years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2005 (this page) | 2,041 | 76.5% | +12.0 pts | 113,687 |
| 2006 | 5,357 | 76.7% | +12.3 pts | 111,135 |
| 2007 | 5,784 | 78.5% | +13.4 pts | 107,014 |
| 2008 | 4,693 | 80.6% | +15.5 pts | 101,384 |
| 2009 | 3,451 | 81.1% | +14.7 pts | 90,337 |
| 2010 | 3,544 | 83.6% | +16.3 pts | 88,395 |
| 2011 | 2,212 | 85.1% | +16.0 pts | 80,913 |
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FAQs
Is a 2005 Lexus IS250 reliable?
2005-registered examples passed 76.5% of their MOT tests (2,041 tests, 2023–2025), +12.0 points versus all UK cars registered in the same year. At roughly 21 years old with a median 113,687 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2005 IS250?
The median tested example shows 113,687 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.